Johan ltidvig jonsson



(No Model.) J. LQJONSSON.

AUTOMATIC SPEED REGULATOR POR STEAM TURBINES. No. 554,425.

Patented Feb'. 11, 1896i;

I el

Witnesses.

Inventor." (7 il'. L 0g 'zuaou I .Attorney /Mu MQW Ww y ffm.

Nrrn STATES.

JOHAN LUDVIG J NSSON OF STOCKHOLM, SVEDEN, ASSIGNOR TO THE AKTIEBOLAGETSEPARATOR, OF SAME PLACE.

AUTOMATIC SPEED-REGULATOR FOR STEAM-TURBINES.

SPECIFICATION forming part of Letters Patent No. 554,425, dated February1 1, 1896.

Application filed November 8, 1895. Serial No. 568,300. (No model.) i

T0 all wir/0m t may con/cern.-

Be it known that I, JOHAN LUnvIG J NssoN, engineer, a subject of theKing of Sweden and Norway, residing at Stockholm, Sweden, have inventedcertain new and useful Improvements in Automatic Speed-Regulators forSteam-Turbines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification. p

This invention has for its object to automatically regulate the speed ofthe turbine by regulating the size of the supply-port by thespeed-revolution of the turbine.

It consists, broadly considered, in supporting the turbine upon theshaft or connecting it therewith so that it may have a lateral movementand in one of its extreme positions leave the supply-port full open andin the other extreme position closed entirely, the turbine being heldnormally in the iirst-mentioned position, and providing devices which,under the action of centrifugal force in the rotation of the turbineproportionate to the speed of revolution, act upon and move the turbinedownward. to more or less close the inlet-port.

I will first describe the embodiment of my invention as illustrated `inthe accompanying drawings, and then particularly point out the inventionin the claims.

In the drawings, Figure l is a vertical section on the line 1 1 of Fig.2. Fig. Zis a sectiony on the line 2 2, Fig. 1, with plate I removed.Fig. 3 is a section on the line 33, Fig. 2.

A is the shaft of the turbine; B, the casing; C, the plate or frameholding the buckets or vanes c. This plate has centrally the iangeportion D partially cut away, forming the recess d. In this recess is acoil-spring d', one end resting on or secured to the flange portion D atthe upper end of recess CZ and the other end on or secured to a collarE, secured to shaft A. The flange portion D has a slot cl3, throughwhich a pin d2, secured to the shaft A, passes. The bucket or vane frameO has at its outer end the up wardly-extending flange F, of extent equalto the inlet-port G. The inner surface of the casingB is formedeccentric with the frame O, so that at one portion, contiguous to theinlet-port, the flange F above the bucket and flange f below the bucketfit snugly against the said surface, while at that portion contiguous tothe outlet-port H a space is left between these parts, the firstcondition being to prevent the escape of steam or other gas or vapor inentering the bucket at the inlet-port and the other to allow it toreadily discharge at the outlet-port.

I is a plate secured to the shaft by pin d2,

the frame or plate C being at its inn er or central. .portion out away,as at c2, and the plate I so formed at one or more points by dependingiianges t as to form between it and the frame O a pocket i2, decreasingin height from the shaft outward and with an inclination toward theshaft. In these pockets, of which there may be any number, six beingshown, are placed balls or spheres J.

From the foregoing description it will bc clearly seen that the frame Cis capable of a vertical movement of limited extent upon the shaft A,and is held normally in the position shown in Fig. 1 by the spring d'.

When the turbineis revolved, the centrifugal force tends to throw theballs J outward, and when the speed is sufficient to overcome the weightof the balls they commence to move outward, and, the plate I being fixed`and the pocket 712 of decreasing height outward, the balls force theturbine downward upon the shaft A, the extent of outward movement of thespheres J being dependent upon the speed of revolution of the turbine.Thus the downward movement of the turbine is dependent upon its speed ofrotation.

Initially and when the turbine is at rest the to-p of the inlet-portcoincides with the bottom of flange F. In the revolution of the turbine,when, as described, the turbine moves downward, the ilange F covers theinlet-port by an amount dependent upon the extent of its drop, and thusdependent upon its speed of rotation, until finally, when it has moveddownward its utmost, the port is entirely closed. This downward movementis against the spring d', and therefore whenever the IOO speed falls andthe ball moves inward the spring moves the turbine on the shaft in areverse direction, again opening the port.

This device is adapted to a turbine driven by any means, whether steam,water, air, or any other power.

I do not intend to limit myself to the specific embodiment of myinvention illustrated by the accompanying drawings and hereinbeforedescribed, except as the same may be specifically claimed.

Having now fully described my invention, what I claim, and desire toprotectby Letters Patent, is-

l. In combination with a turbine Wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movement along said shaft,an inlet-port for said turbine, and means thrown into action by therotation of said turbine and adapted when rendered active to move saidturbine along said shaft an extent dependent upon the speed of rotationof the turbine, the turbine being adapted in its movement in onedirection upon said shaft to close said inlet-port, and in the otherdirection to open it.

2. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movement along said shaft,an inlet-port for said turbine, and means thrown into action by therotation of said turbine and adapted when rendered active to move saidturbine along said shaft an extent dependent upon the speed of rotationof the turbine, thc turbine being adapted in its movement in onedirection upon said shaft to close said inlet-port, and in the otherdirection to open it, and a spring or equivalent device against whichsaid turbine acts in its movement along the shaft in one direction.

3. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movement along said shaft,an inlet-port for said turbine, a peripheral flange upon said wheel ofextent substantially equal to the inlet-port, and means thrown intoaction by the rotation of said turbine and adapted when rendered activeto move said turbine along said shaft an extent dependent upon the speedof rotation of the turbine, the peripheral flange being adapted in themovement of the turbine in one direction on said shaft to close saidinletport, and in the other to open it.

4L. In combination with a turbine wheel, a shaft upon which said wheelis secured so as to have a rotary movement and a movement along saidshaft, an inlet-port for said turbine, a peripheral flan ge upon saidwheel of extent substantially equal to the inlet port, and means throwninto action by the rotation of said turbine and adapted when renderedactive to move said turbine along said shaft an extent dependent uponthe speed of rotation of the turbine, the peripheral flange beingadapted in the movement of the turbine in one direction on said shaft toclose said inletport, and in the other direction to open it, and aspring or equivalent device against which said turbine acts in itsmovement along the shaft in one direction.

5. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movementL along saidshaft, an inlet-port for said turbine, a peripheral flange upon saidwheel of extent substantially equal to the inletport, and means throwninto action by the rotation of said turbine and adapted when renderedactive to move said turbine along said shaft an extent dependent uponthe speed of rotation of the turbine, the peripheral flange beingadapted in the movement of the turbine in one direction on said shaft toclose said inletport, and in the other direction to open it, and aspring or equivalent device against which said turbine acts in itsmovement along the shaft in one direction, said spring tending to holdsaid turbine free from covering said inlet-port.

6. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movement along said shaft,a plate or frame secured so as to have no movement along said shaft,there being between which plate and the turbine wheel radial passages,spheres in said passages, and an inlet-port, the turbine wheel beingadapted in its movement in one direction upon said shaft to close, andin the other direction to open the said inlet-port.

7. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement, and a movement along saidshaft, a plate or frame secured so as to have no movement along saidshaft, there being between which plate and the turbine wheel radialpassages, spheres in said passages, and an inlet-port, the turbine Wheelbeing adapted in its movement in one direction upon said shaft to close,and in the other direction, to open the said inlet-port, and a spring orequivalent device against which said turbine acts in its movement alongthe shaft in one direction.

S. In combination with a turbine wheel, a shaft upon which said wheel issecured so as to have a rotary movement and a movement along said shaft,a plate or frame secured so as to have no movement along said shaft,there being between which plate and the turbine wheel radial passages,spheresfin said passages, and an inlet-port, the turbine wheel beingadapted in its movement in one direction upon said shaft to close, andin the other direction to open the said inlet-port, and a spring orequivalent device against which said turbine acts in its movement alongthe shaft in one direction, said spring tending to hold said turbinefree from covering said inletport.

9. In combination with a turbine wheel, a

IOO

IIO

shaft upon which said wheel is secured so as to have a rotary movementand a movement along said shaft, said turbine wheel having a peripheralflange, a plate or frame secured so as to have no movement along saidshaft, there being between which plate and the turbine wheel radialpassages, spheres in said passages, and an inlet-port, the peripheraliiange of the turbine wheel being adapted in its movcmentin onedirection along said shaft to close, and in the other direction to open7said inlet-port.

10. In combination with a turbine wheel, a shaft upon which said wheelis secured so as to have a rotary movement and a movement along saidshaft,` said turbine wheel having a peripheral `flange, a plate or framesecured so as to have no movement along said shaft, there being betweenwhich plate and the tur-` bine wheel radial passages, spheres in saidpassages, and an inlet-port, the peripheral flange of the turbine wheelbeing adapted in its movement in one direction along said shaft toclose, and in the other direction to open said inlet-port, and a springor equivalent iiange of the turbine wheel being adapted inits movementon said shaft in one direction to close, and in the other direction toopen, the said inlet-port, and a spring or equivalent device againstwhich said turbine acts in its 'movement along the shaft in onedirection,

said spring tending to hold said turbine free from covering saidinlet-port.

In testimony whereof I affix my signature in presence of two witnesses.

JOHAN LUDVIG JONSSGN. Vitnesses:

CARL P. GERELL, WM. W. MITCHELL.

